Snap-hook.



F. E. SCHARTOW.

SNAP HOOK.

APPLICATION msn. DEC. 19. 1913.

Patnted Feb. 26 19M.

C\" v i DVV/ 4 A TTU/:NME YE man @Td P NOURSE, OF MILWAUKEE, WISCONSIN.

suer-Hook.

Specification of Letters Patent. Pgttntd Feb. 205, 191%.

Application led'December 19, 1913. Serial No. 807,624.

To all 'whom 15 'm ay concern:

Be it known that I, FRANK E. Scrrnn'row, a citizen of the United States, and resident of Racine, in the county of Racine and State ofVVisconsin, have invented new anduseful Improvements in Snapl-looks, of which the following is a description, reference being had to the accompanying drawings, which are a part of this speciication.

This invention relates to improvements in snap hooks and .more particularly to snap hooks formed of cast metal and in which the eye is cast in open position and is closed when attached to a chain link or other connection.

In snap hooks of the type mentioned the eye is usually cast in hook form with the end of the hook spaced a suilicient distance from the body portion to permit a chain link or other connection to be engaged by the hook. The hook is then closed so that the end of the hook abuts against thebody portion and closes the eye. The eyes o-f snap hooks formed in this manner tend to open and straighten out when subjected to unusual strains and do .not possess sufficient strength to withstand strains which they are ordinarily subjected to.

It is one of the objects of the present invention to overcome the before mentioned objectionable features and provide a snap hook which may be cast with'an open eye, and which, when closed, possesses sufficient strength to withstand all strains which they may ordinarily be subjected to.

A further object of the invention is to provide a snap hook in which the eyed portion thereof is formed of two thicknesses of metal so constructed that even though the parts would give or partially straighten out while under abnormal strain, the eye would still remain closed.

A further object of the invention is to provide a snap hook in which means are pro vided for locking Vthe eyed portions together when in closed position.

A further obfect of the invention is to provide a snap hook of simple construction which is strong and durable? is inexpensive to manufacture and is well adapted for the purpose described. j

With the abovel and other objects in view, the invention consists of the improved snap hook and its parts and combinations as set forth in the claim, and all equivalents thereof.

In the accompanying drawing in which the same reference characters indicate the same parts in all of the views:

Figure 1 is a front view of the improved snap hook, parts being in section to show interior construction; l

Fig. 2 is an inverted end view thereof;

Fig. 3 isa side view of the snap hook with portions forming the eye shown in closed position, the view also showing fragments of a chainlink engaging the eye;

F ig. 4 is a transverse sectional view ther of taken on line t-l of Fig. 3;

Fig. 5 is an inverted top view of a modified form of snap hook; and e Fig. 6 is a front View of the lower portion of the modied form with portions in section to show interior construction.

Referring to the drawing the numeral 8 indicates the shank, 9 the hook member and 10 the spring actuated bolt thereof'having the operating knob 11 projecting therefrom. The lower end of the shank portion of the snap hook is provided with two depending hook like parts 12, the lower half circular tongue portions 13 of which side lap each other and are cast in spaced relation to permit a chain link or other connection 14 to be attached thereto. These hook like portions when pressed together form the improved eye 15 of the snap hoo-k.

FRANK EfscHAa'row, or RACINE, Wisconsnv. Assrcnon' .or oNnHALF 'To RUPERT A.

The overlapped lower half circular tongues 13 of the eye together the upper inner part of each hook like tongue adjacent to its junction with the upper portion of the eye is provided with a locking recess 17 into which extends the locking projection 18 formed on the inner face of each free end of the hook like tongues. These projections Vextend at right angles from the said tongues and prevent the tongues from straightening Vout under a pulling strain.

VVInfthe modified; form shown `in Figs. 5., and 6 thel locking recesses 17 are provided in theV freeend Aportions of the tongues and the projections V18V extend Afromv the upper inner faces `of the ,portions of the tongues adjacent to their junction with the upper partici the eye. The snap hooks are usually formed of metal possessing suiicient malleability to permit the parts being bent Without breaking. y

From the foregoing descriptionY it will be seen that the eye oi' the snap hook may bc c astin convenientfform to attach4 a chain link or any other connectionv thereto and When attached the eye portions may be closed into locked position, and in which position the tongue-portion of thev snap hookl will be substantially as strong as if all parts of the eye were formed integral.

lVhat I'claimr as my invention is:

A snap hook comprising in part a shank portion provided on one end withan inte- Gopiesef this patentvmay -be-.obt-ained for gral haii" circular portion and with half circular side lapped bendable tongues,` each of said tongues being approximately one halt the thickness ot' the half circular portion and forming a continuation from opposite ends thereof, the inner taces of said tongues being flat and bearing against each other and each tongue having a. projection near one end and a recess adjacent its junction with the half circular portion to cngage with a similar recess and projection on the other tongue to lock said tongues together, said tongues being spaced from each other until brought together to foi-1n an eye with the integral hall circular portion.

In testimony whereof, l aiiix my signature` in presence of two witneses.

FRANK E. SCHAR-TOW.

lVitnesses E. G. H. VVnND'r, L. l. HANSEN.

five cents each, 4by addressing the Commissioner of Patents.

Washingtomn. G. 

